What is an Online Email Verification Tool?

An online email verification tool is a service that confirms the accuracy of an email address, checking it to ensure that it has the correct format, that the domain exists, and that the mailbox accepts incoming emails. Email validation is a crucial step in email marketing to prevent hard bounces, spam traps and other problems that can damage your sender reputation and lower the deliverability of future messages.

Verify Email Addresses Online: Ensure Data Integrity

Some services verify individual addresses one at a time, while others process entire lists at once and check them to identify the number of valid or invalid addresses in the list. These services typically use a ping protocol to send a message to each email address in a list, asking whether it is active. If the address is not active or has a typo, the email verification tool returns a message indicating that it is not valid.

The best email verification tools are easy to use, with interfaces that allow you to enter a single contact’s email and receive an instant email health score. You can also upload lists of contacts for a comprehensive email health check. Some of the top email verification tools offer integrations with CRM, email marketing and automation platforms, and landing page builders.

Real-time email verification can be built into your website and web forms to validate new leads in real time. This helps you avoid disposable and spam trap emails that can skew your data, allowing you to get more high-quality leads for your sales team.